在考前，考试中，你可以做很多事儿帮助你保持平静，自信——比如深呼吸训练，形象化练习。

There are a number of things you can do right before and during the test to help you stay calm and confident. Examples include deep-breathing exercises and visualization.

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虽然一些旧背包的颜色和尺寸都不合适了，但你仍然可以用它们做很多事情。

Although some of the old backpacks are no longer right of their color or size, there are still many things you can do with them.

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一旦你可以利用萤光看到某种东西，你就可以做很多事情。

There are all sorts of things you can do once you can visualize something with fluorescence.

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And you'll do different projects with these people; you'll do a lot of things in distant learning; you'll communicate a lot with these people.

你和他们合作不同的课题;,远程学习可以做很多事;,可以经常和这些人交流。

哈佛公开课 - 幸福课课程节选